"It is with deep, profound sadness that this afternoon I’m able to share that we made the extremely difficult decision to transition from operation search and rescue to recovery," Cava said on Wednesday.
Surfside Mayor Charles Burkett said the possibility of someone still being alive is near zero. However, Burkett also said he has not lost hope because there could be a miracle.
Fire officials also said they project no more victims would be found alive.
The tragedy in Surfside occurred early on June 24, when the 12-story Champlain Towers South residential building partially collapsed. The remaining portion of the condominium building left standing following the collapse was demolished on Monday.